21616530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1355

約数の個数: 64

約数和(自身を含む): 57214080

約数和(自身を除く): 35597550

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 43, 65, 78, 86, 129, 130, 195, 215, 258, 390, 430, 559, 645, 1118, 1289, 1290, 1677, 2578, 2795, 3354, 3867, 5590, 6445, 7734, 8385, 12890, 16757, 16770, 19335, 33514, 38670, 50271, 55427, 83785, 100542, 110854, 166281, 167570, 251355, 277135, 332562, 502710, 554270, 720551, 831405, 1441102, 1662810, 2161653, 3602755, 4323306, 7205510, 10808265, 21616530]

約数ペア:

[(1, 21616530), (2, 10808265), (3, 7205510), (5, 4323306), (6, 3602755), (10, 2161653), (13, 1662810), (15, 1441102), (26, 831405), (30, 720551), (39, 554270), (43, 502710), (65, 332562), (78, 277135), (86, 251355), (129, 167570), (130, 166281), (195, 110854), (215, 100542), (258, 83785), (390, 55427), (430, 50271), (559, 38670), (645, 33514), (1118, 19335), (1289, 16770), (1290, 16757), (1677, 12890), (2578, 8385), (2795, 7734), (3354, 6445), (3867, 5590)]